Daniel Mangum

@hasheddan

big fan of computers and human beings

with @katiecmangum
danielmangum.com
Joined September 2017
557 Photos and videos Photos and videos

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  1. Pinned Tweet
    18 Jan 2021

    It's finally ready! will now index any repo and serve documentation for its CRDs 🚀 If you use the site and find it helpful, please consider supporting my work by making a donation to

    1 reply . 39 retweets 119 likes
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  2. 2 hours ago

    New York City and the C ABI both be like: “if you can make it here you can make it anywhere”

    3 likes
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  3. 6 hours ago

    OH: “Have you listened to ? It’s this new podcast where they have a round table discussion on whatever Marc Andreessen tweeted that week.”

    1 reply . 1 retweet 12 likes
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  4. 8 hours ago

    Spending my Saturday morning with . “C++’s Superpower”

    TV on a stand playing Matt Godbolt’s CPPP 2021 Keynote entitled “C++’s Superpower”.
    2 replies . 6 likes
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  5. 10 hours ago

    Sending this diagram to anyone who asks me a question about cryptography for the rest of eternity.

    Diagram that shows that it is easy to compute output of a one way function given input, but hard to compute input given output.
    2 replies . 3 retweets 19 likes
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  6. 22 hours ago

    Using a high level language after writing a bunch of assembly is just saying “I know what you’re doing, you’re not fooling anyone” to the compiler over and over again, then disassembling the binary and realizing you have in fact been fooled.

    12 likes
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  7. Mar 17

    I described a JavaScript feature as neat today, so obviously it's time for me to go ahead and retire.

    1 reply . 12 likes
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  8. Mar 17

    Tried to fix a frontend bug and GitHub went down. The universe is giving me signs.

    1 reply . 1 retweet 37 likes
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  9. Mar 16

    I love how Go’s assembler is just like “yeah the compiler didn’t need that instruction so we didn’t implement it”.

    1 reply . 10 likes
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  10. Mar 16

    Working on legacy codebases with less than optimal design decisions can feel burdensome, but it also develops problem solving skills that you don’t get from greenfield projects. It forces you to think in terms of the smallest change you can make that moves you closer to the goal.

    1 reply . 1 retweet 18 likes
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  11. Mar 15

    Writing an entire project in assembly but using rustc and a giant unsafe block to assemble and link.

    8 likes
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  12. Mar 14

    How often (if ever) do you feel that you are forced to compromise code quality in service of moving quickly at your day job? Obviously code quality is a subjective measure, so answer based on your definition.

    3 replies . 4 likes
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  13. Mar 13

    a common beach read.

    Picture of Linkers and Loaders book on the beach.
    4 replies . 58 likes
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  14. Mar 12

    The Linux Programming Interface is full of wonderful diagrams and descriptions, but I particularly enjoy this one outlining the hazards of the free list. Or “a fairly combustible mix”.

    Diagram of the free list on Unix systems.
    2 replies . 5 retweets 54 likes
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  15. Mar 12

    One day I’m going to open a local book store that only has one section that is full of science books out of spite towards every book store that neglects the genre.

    3 replies . 1 retweet 17 likes
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  16. Mar 12

    syscalls so needy demanding arguments be put in just the right registers.

    3 replies . 6 likes
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  17. Mar 11

    Mokes Miles.

    Strava picture of the Mokes in O’ahu with 3 miles at a 6:27 pace.
    11 likes
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  18. Mar 11

    compiler engineers: “we heard you like intermediate representations, so we…”

    5 likes
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  19. Mar 10

    Kaaawa, HI (O’ahu)

    Basketball goal in Swanzy Beach Park in Kaaawa, Hawaii on O’ahu.
    17 likes
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  20. Mar 10

    Spending vacation writing a QUIC implementation in RISC-V assembly.

    6 replies . 16 likes
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  21. Mar 9

    LGTM.

    View from Pillbox trail overlooking Lanikai Beach.
    7 replies . 52 likes
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